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UNITED STATES PATENT @Errea EUGENE O. SHOPPING, OF MADISON, NEW JERSEY,ASSIGNOR OF ONE-HALF OF HIS RIGHT TO EUGENE A. ELY, OF SAME PLACE.

IMPROVEMENT IN MECHANICAL ESCAPEWIENTS,

1 Specification forming part of Letters Patent No. 332,@33, datedNovember 5, 1832.

. starting and produce a steady continuous rotary movement of the wheel,by which an escapement is made available for other mechanical purposesthan that of measuring in timepieces, and can be used in eases wherependulums and fly-wheels are undesirable. This object is attained bymeans of peculiarly-constructed cams, in which a projection on thelinger or pallet is caused to travel, and which controls its movement. Y

In the drawing, A is the wheel; B, the pallets or lingers. O is a cam;D, a vibrating guide on the cam; and E is the operating-le- YQI.

Force being applied to the pallet by the wheel, the pin a on the palletB, by sliding up the incline under the vibrating guide I) Whiletraveling backward, lifts the pallet from the `tooth, and on reversionof pressure the pin travels over the guide to the' bottom of thenext-coming tooth on the wheel. The .n gers being attached equidistantfrom. the center to the ends of a cross-bar on E, the operating-lever,the length of the stroke of the end of E can be given as may be requiredby the relative distance of point from point 011 the teeth of the wheela-nd length of the lever-arm E.

As cams will operate in large machinery with a stationary as well aswith a vibratin g guide, I do not eonne myself to any guide that ma-ynot be necessary.

-I am aware of Oranes finger or pallet guide, which has but the oneeffect of guiding the finger down into the tooth of the wheel. I producethe additional effect of lifting the one tin ger clear of the- Wheel atthe same time that the other is guided to the bottom of tooth andreceives the pressure, superseding the need of momentum for releasingthe pallet` from the wheel and the back action inevitably consequentthereupon. The fingers can be extended back of the pivot in thecross-bar on E, and be operated by the same cams at the end. I do notconfine myself to the lower end.

l'. The cam C, as and for the purpose specified and shown.

2. The wheel A, fingers B, cam C, and lever E, combined and operatedsubstantially as hereinabove set fort-h.

EUGENE C. HOPPING.

Witnesses:

W. M. GooDrNe, EDWARD COLLVER.

